Reamer for pipe threaders



June l0, 1930.

E. T. sli-:5K0

REAMER FOR PIPE THREADERS Filed March 1e. 1.927

.m si.. I

YPatented June 10, 1930 STATES PATENT OFFICE EML`T. SIESKO, F NANTICOKE,PENNSYLVANIA BEAMER FOR PIPE THREADEB-S i i Application filed March16,1927. Serial No. 175,789.

' This invention provides means whereby a pipe may be threaded and theburr removed atone operation and withoutnecessitating rea-:djustment orithestoppingoi: the cutting g'liaction of the threading tool7 bothoperations being effected on the forward movement of the tool.

The invention supplies a rearner which is adapted to be readily attachedto a pipe 10 threading tool and adjusted to the lsize oiE the pipe to bethreaded without interfering in the least with the ordinary operation oruse of the tool.

VThe invention furthermore provides a 15 reamer attachment oi thecharacter aforesaid which may be marketed at relatively vsmall cost andwhich is adjustable to be easily adapted to pipe threading tools ofdiierent sizes within certain limits.

VVhi'le the drawings illustrate a preferred embodiment of the inventionit is to be understood that in adapting the means to lmeet speciic needsand requirements the design may be varied and such other changes .in theminor details of construction may be resorted to within the scope of theinvention las claimed, without departing from the vspirit thereof. Y

For a full yunderstanding of the invention and the merits thereof,reference is to be had to the following description and the drawingshereto attached, in which, Figurel 1 is a detail sectional view ci' areamer attachment showing it in operative relation.

Figure 2 is a detail perspective view of the attachment, the parts beingseparated and disposed in a group. j

Corresponding and like parts are referred to inthe followingAdescription and designated in the several views of the drawings by likereference characters. j The die stock illustrated is ot welllrnown.construction and has been selected to demonstrate the application orthe invention. The frame or head of the die stock is designated Vby thenumeral 1 and 2 indicates the usual Yhandles removably itted thereto.

The reamer attachment comprises a frame including a yokey whichcomprises spaced side pieces' and a connecting end piece 4 in which isformed an opening 5 to provide clearance for the stem 6 of the reamer 7.The side pieces 3 have longitudinal slots 8 formed therein to receive'the reduced ends of a 'cross head 9, in which is formed an opening 10of noncircular outline to vreceive ,the stem of the reamer to cause thelatter to rotate with the thread forming tool.' Threaded stems 11project outwardlyvvfroni the reduced ends of the cross head 9, and re-yceive clamp nuts 12 by means of which the cross head isv made secure inthe required adjusted position. Y

' Lugs 13 project outwardly in opposite di'- rections from the free endsof the side pieces 3 and provide convenient means for attaching thereamer to the head or frame of the die stoel/r. Similarly formedconnectors 14 are adjust-ably coupled at one end to each of the lugs'land the opposite end is formed with an opening 15 through which a handle2 extends, whereby to secure the reamerto the threading tool. Oppositeend portions of the connectors 14 are disposed at a right angle to oneanother, and the end in contact with the lug 13 is formed with athreaded opening v16 to receive a screw 17 provided to secure the yoketo the connectors. Each of the lugs 13 is formed with an elongatedopening 18 to receive the screw 17 andad- Inits of adjustment of ltheconnectors 14 whereby the attachment may be readily adapted to differentydie stocksy The end portions or" the connectors 14 which engage the`lugs 13 are provided at one side with a flange 19 which is adapted tosustain the thrust when theA reamer is in operation, and thereby relievethe bolts, 17 ofthe major part of the strain. I

These connectors areprovided with, an inwardly projecting shoulderintermediate their end portions, constituting an abutment or vbearingfor the upper Isurface of the trame or head ofthe diestock 1, to give'1ncreased rigidity to the assembled combination of diestock, reainerframe and connector.

@ne ofy the connectors is provided intermediate the angularly'disposedends with an observation opening 22 through rwhich the y usualindications on the face of the die stock may be read.

The cross head 9 is adjustable between the side pieces 370i the yoke andis made fast in the lrequired adjusted position by means or the clainpnuts l2 between which and the shoulders at the base of the reduced endsof the cross head the side pieces 3 are clamped. Scale graduations Q3are provided along an edge ol one of the side pieces 3 and inconjunction with an indicatingmark on theV cross head 9 enables thelatter and the reamer to be properly adjusted according to the sizeofthe pipe to be screw threaded. The steinl ofthe reamer is usuallytapered and of square formation and the opening 10 formed in the crosshead 9 is of corresponding` shape to snugly receive said stemk andholdthe reainer `Zin place. When the attachment is applied to ay pipethreading tool it is rotated with the tool when threading a pipe.Ther-earner is adjusted so that during the final cutting of the threadthe reameris brought into action to remove the burr 'from the end of thepipe formed by the usual pipe cuttingtool.A Both operations areVperformed simultaneously and during thead- Vancefof thethreading tool,thereby obviating the `stopping of the tool or necessitating Y thereadjustinent thereof.

Having thus described the invention, IV claim: .i

7l. A reamer attachment for pipe threading tools,'the same comprising aframe including a'yole having outwardly disposedV lugsproviding means ofattachment totheY threading tool, the side pieces of the yokebeingvformedwith longitudinal slots, a cross head adapted t0-receiveandV carry the reamer and formed'withreducedk end por-k tions disposedtoj operate in `the longitudinal slots ofthe side pieces,` and lhavingthreaded stemsprojecting outwardly from the reducedends, and clamp-nutsmounted upon adjustably connecting theV other end to a lug oi the yoke.

3. In comb'nation with a pipe threading diestock having handles and areamer kattachment thereforliaving a yoke provided' With outwardlydisposed lugs, means for connecting the attachment tothe diestockcoinprising a lpair of relatively flat members each having perforatedend portions disposed at approximately right angles to each other7 oneof said perforations being adapted to receive one -of said handles, Y.

means passing through the other of said perforations tocouple theconnector to one of said lugs, and an inwardly projecting shoulderintermediate the end portions adapted to abut against a portion of thediestock:

In testimony whereotI'aHiX my signature.

EMILT. SIESKO. [1.7. s.]`

. said tlireaded `stems .to secure the cross head to? Vthe-yoke in therequired adjustedrposition, there beinggan indicatingmark on the f u Icross li'eadfand coacting scale graduations en .a sidepiece vof the'yoke, to admit of proper adjustment; of the reainer. Y

- 2. A reamer attachment for pipe thread-VV ingtoo'ls thesame'comprising a `rainejin` cluding'a yoke having its side pieceslongitudinally slotted and provided at their ends with outwardlydisposed'lugs in which are formed Y elongated openings', a cross headhaving'reduced ends disposed in vthe slotted side pieces ofthe"yoke,`means`for securing y Y the cross heads inthe required adjustedpositiOnS, connectors having'opposite end portions disposed relativelyat righty angle,V

one of the-ends being. apertured toreceive the handlesot the, threadingtoolpand means y les

